Granted Patent
Utility
US 4,484,173 · App. 06/527,037
Pressure transducer device using Hall elements
Inventor:
Charles J. Everett
Patented Case
View Patent ↗
Granted: Nov 20, 1984
Filed: Aug 29, 1983
Inventor
Charles J. Everett
Assignee (at issue)
ROBERTSHAW CONTROLS PRIVATE LIMITED
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.